baber/WOPTO huggingface dataset:
Patent NL-2024998-A (NL)
Title: Gas extraction pipe applicable to upbound borehole tending to collapse
Inventor: CHUNSHAN ZHENG
IPC: E21F7/00
Filed: 2020-02-26
Abstract: The present invention discloses a gas extraction pipe applicable to an upbound borehole tending to collapse, including a pipe body and a coal breaking device disposed at an end portion of the pipe body, the pipe body includes a main pipe body and a 5 telescopic pipe body, the telescopic pipe body is sleeved in the main pipe body, a sidewall of the main pipe body is provided with several extraction holes, a sidewall of the telescopic pipe body is provided with several auxiliary extraction holes, and the coal breaking device is disposed at an end portion of a free end of the telescopic pipe body. The gas extraction pipe of the present invention adopts a telescopic feed operation, and 10 can break medium and small collapsed coals along the way in an upbound borehole of a roadway, and can directly break large collapsed coals at the top. The broken cinders can slip off the roadway along the bottom of the upbound borehole, so that the gas extraction pipe can be filled in the entire upbound borehole. Because a main pipe and a telescopic pipe of the gas extraction pipe are both provided with extraction holes, the extraction of 15 the entire borehole gas is ensured, the extraction efficiency is high, and the continuity is strong.
Patent NL-2032620-A (NL)
Title: Fireproof device applicable to flexible derrick of arch bridge
Inventor: YANG LI
IPC: E01D19/00
Filed: 2022-07-27
Abstract: The present invention discloses a ﬁreproof device applicable to a ﬂexible derrick of an arch bridge. The ﬁreprooﬁng device includes two columnar ﬁreproof protection 5 structures which are sleeved on an outer side of the ﬂexible derrick of the arch bridge and have semicircular cross sections; the two ﬁreproof protection structures are respectively provided with connectors at end parts and are abutted and combined into a whole cylinder structure through the connectors; each ﬁreproof protection structure is of a multilayer structure; an inner layer and an outer layer are supporting layers; and a 10 perlite ﬁlling layer is arranged between the two supporting layers. The ﬁreproof device of the present invention is mounted on the ﬂexible derrick of the arch bridge; which can effectively protect the structure of the ﬂexible derrick of the arch bridge.
Patent NL-6513898-A (NL)
IPC: E05D7/08
Filed: 1965-10-27
Abstract: 1,105,024. Pivot hinge for windows. GRORUD JERNVARE FABRIK A/S. 31, May, 1965 [28, Oct., 1964], No. 22994/65. Heading E2F. A two-part pivot hinge for horizontally pivoted centre pivot windows comprises a part 1 seated in a rabbet 4 in the window frame and having a bearing 7 for ready insertion of the hinge pin carried by a similar part 2 (Fig. 3, not shown) seated in a similar rabbet on the sash. The pivot axis is so placed that the window may be opened through 180‹. An elastomeric weather strip 13 is clamped to the part 1 in a slot 12 and extends through a recess 11 to the bottom of the frame, and is abutted by the lower half of the window when closed. A similar strip, clamped to the part 2, seals the upper half of the window. A "U" shaped friction bearing of e.g. nylon may be interposed between the pin and the bearing 7, the friction being increased by a screw drawing together the limbs of the "U".
Patent NL-6706846-A (NL)
IPC: C07C51/27
Filed: 1967-05-17
Abstract: 1,159,066. Oxalic acid. RHONE-POULENC S.A. 25 May, 1967 [25 May, 1966], No. 24443/67. Heading C2C. Oxalic acid is prepared by oxidizing propylene, or an intermediate product (for example lactic acid or α-nitratolactic acid) containing two or three carbon atoms which can be formed by nitric acid and/or nitrogen peroxide oxidation of propylene, with nitric acid in the presence of, as catalyst, a compound of iron, aluminium, chromium, tin, bismuth, iodine, which is soluble in the reaction medium. The catalyst, which may be present in an amount from 0À01 to 10% and preferably from 0À1 to 2% by weight (expressed as metal or as iodine) based on the weight of the reaction mixture, is preferably a sulphate, nitrate, chloride or phosphate of iron, aluminium, chromium, tin or bismuth; ferrous oxide, ferric oxide, or chromium trioxide; an iodate; a chromate; or chromic acid. The catalysts may be used in processes wherein gaseous propylene is passed into an aqueous medium containing at least 50% by weight of nitric acid at 40-80‹ C. or by introducing the propylene into nitric acid and then heating the solution obtained and wherein the catalyst may be introduced at the beginning of the reaction or at the beginning of the conversion of the oxidation products, for example lactic acid or α-nitratolactic acid, preferably by dissolving the catalyst in the oxidizing agent. Oxalic acid is prepared by treating propylene with nitric acid containing chromium nitrate and subsequently passing oxygen through the reaction mixture and heating; by treating propylene with aqueous nitric acid containing nitrogen peroxide and subsequently heating with chromium nitrate, ferric nitrate, stannous chloride, aluminium nitrate, bismuth nitrate or potassium iodate; by treating α-nitratolactic acid with nitric acid containing chromic acid; and by reacting lactic acid with nitric acid containing chromic acid. Suitable apparatus for the reaction is described by reference to drawings (not shown). α-Nitrato-lactic acid is obtained by treating a mixture of oxygen and propylene with nitrogen peroxide at 0‹ C.
Patent NL-6801149-A (NL)
IPC: B24B37/27
Filed: 1968-01-25
Abstract: 1,170,897. Abrading. SIEMENS A.G. 1 March, 1968 [3 March, 1967], No. 10004/68. Heading B3D. A process for lapping and/or polishing a plurality of plate-shaped semi-conductor crystals comprises sticking the plates 5 to a carrier 6 in such a way that their flat surfaces to be worked are all in a single plane, bringing and holding the plates in contact with the surface of a lapping and/or polishing tool in such a way that at and from the moment of first contact the working surface of the tool coincides with the plane of the surface of the plates to be worked, and moving the carrier relative to the operating surface of the tool. For mounting the plates on the carrier, a ring 1 is provided having a number of columns 2, the upper surfaces of which are in a common plane and each of which have a ring of suction holes or a single annular suction gap whereby the plates can be held one to each column with the surfaces to be lapped engaging the upper surfaces of the columns, the plates being initially positioned by being placed in recesses 5 in a template 4, the recesses corresponding to the columns. When the plates are held by suction on the columns, adhesive, such as beeswax, is placed on the upper surfaces of the plates and the carrier 6, which has been heated, engaged with the plates. Upon cooling of the carrier, the suction is switched off so that the carrier now holds the plates with the surfaces to be lapped in a common plane. The carrier plate is then applied to the lapping or polishing tool so that at the first moment of contact, the working surface coincides with the plane of the surfaces to be worked.
Patent NL-6814538-A (NL)
Title: Activated catalyst production - from thermostable inorganic carrier matl
IPC: C04B20/06
Filed: 1968-10-11
Abstract: Moulded catalyst bodies are made from a thermostable material by introducing small amounts of a thermally stable support suspension which may or may not be charged with a catalyst in insoluble form, into a liquid where it is heated to a temperature higher than the boiling point of the suspension at the working pressure, with the suspension agent and the heating liquid being difficult to mix under the reigning conditions. Subsequently the bodies formed are separated from the liquid, dried if necessary and subjected to final annealing. Spec. annealing is carried out at a temp. of at least 600 degrees C. Pref. as a heating liquid an aqueous suspension and a hydrocarbon compound are used for a heating liquid. This method precludes the disadvantages of using powdered catalysts which tend to cause pressure drops, channel forming or dust problems, or in the case of the material form suggested in Belgian Patent 713,656, uneven distribution of the catalyst.
Patent NL-7002607-A (NL)
Title: Acrylic acid copolymers
IPC: C08F8/00
Filed: 1970-02-24
Abstract: Prodn. of copolymers whose chains consist alternatingly of acrylic acid and comonomers is characterised in that corresponding maleic anhydride copolymers are converted in aqueous soln. into monoalkali salts and decarboxylated at 120-300, pref. 150-200 degrees C. This is followed by acid treatment in order to precipitate the copolymer.
Patent NL-7102636-A (NL)
Title: Reverse osmosis appts - with open celled synthetic resin layer between cellulose acetate membrane and plastic support tube
Filed: 1971-02-26
Abstract: Apparatus for reverse osmosis has a support, a cellulose acetate membrane and a porous layer, placed between the membrane and the support which consists of an open called synthetic resin layer pref. polyurethane whose pores are larger than the pores in the membrane, but sufficiently small to provide a smooth support face for the membrane. Esp. useful for the purification of water. The pores of the porous layer do not become blocked.
Patent NL-7206524-A (NL)
Title: Two-stage reforming of naphthas with two different - catalysts - the second being a supported platinum/gp viii noble metal
IPC: C10G59/02
Filed: 1972-05-15
Abstract: A catalytic reforming process giving prods. of high octane no. comprises (a) contacting a naphtha contg. paraffins and naphthenes with a supported metal naphthene-dehydrogenation catalyst (not consisting of Pt and Ir supported on Al2O3) in the presence of H2 to give a prod. stream; and (b) contacting H2 and at least part of the prod. stream with a 2nd catalyst comprising Pt and >=1 Gp. VIII noble metal on a porous support. The catalyst in stage (a) pref. comprises 0.01-2.0 wt.% Pt and 0.01-4.0 wt.% Cl supported on Al2O3. The catalyst in stage (b) pref. comprises 0.01-2.0 wt.% Pt, 0.01-2.0 wt.% Ir and 0.01-4.0 wt.% Cl supported on Al2O3. Stages (a) and (b) are pref. both carried out at 371-538 degrees C/1. 05-42 kg/cm2.
Patent NL-7213710-A (NL)
Title: Hot gas blast duct anchorage/mounting - for blast furnace with thermal expansion compensation in ducting walls
IPC: F16L51/03
Filed: 1972-10-11
Abstract: The ring manifold is fed by a single radial collector manifold into whose sections, joined by thermal expansion compensators, the delivery pipes from individual air heaters are 'teed', via regulator valves and separate expansion joints. This radial pipe has a blanked off outer extension joined by a further expansion joint to furthest 'tee' piece and anchored by external tie rods to the stub pipe between the ring main and the innermost expansion joint. Damage prevention, long life.
Patent NL-7405808-A (NL)
Title: Plastic sheets esp for insulation - with profiled ribs of defined spacing and dimensions on each face
IPC: E06B3/67
Filed: 1974-05-01
Abstract: Opaque, partly transparent or pref. fully transparent plastic e.g. PVC, polystyrene or polyethylene, sheets have a thickness of 0.05-3 mm and are provided with profiled ribs on each side, these ribs having a height of 0.1-3 mm, and a move. thickness of 0.1-5 mm. The ribs are placed at a distance of 3-500 mm from each other, and may be hollow or provided with a core. Used esp. as a filling between double glazing, e.g. in glass roofs or walls, or in greenhouse construction. Increases heat insulation, prevents moisture deposition on the glass frames and has decorative appearance.
Patent NL-7505445-A (NL)
Title: Supply mechanism for paper handling machine - has two paper reel holders to give immediate change over when one reel empty
IPC: B65H16/02
Filed: 1975-05-09
Abstract: The mechanism is intended for holding reels of paper for supply to a paper handling machine. The mechanism has at least two reel holders which are arranged such that, when one reel is empty, the other reel can immediately take over the supply to the machine. Each holder may be provided with a shaft carried in bearing housings at either end, each shaft carrying a pair of radial arms near its ends. Each arm has at its free end a core of which a first core is rotatable held at the end of a piston rod of an axial actuating cylinder. The second core is fixed on an axially adjustable shaft, the reel being secured between the cores.
Patent NL-7506591-A (NL)
Title: Soil hole boring machine - has housing support allowing slewing of lining pipe at forward end
IPC: E21B7/20
Filed: 1975-06-04
Abstract: The machine bores a hole through a dyke or under a watercourse and simultaneously lines it with a pipe, having a housing accommodating the boring tool and fitting at least partly inside the pipe. The housing (1) has one or more supports (7) at the forward end of the pipe (6) bearing against the inner wall of the latter, so that the pipe can slew in a plane passing through its lengthwise axis. Adjusting devices are provided on the housing at a distance from the support, acting against the inner wall of the pipe. These can be in the form of rams, evenly spaced round the periphery of the housing and near the rear end of it.
Patent NL-7901408-A (NL)
Title: Defoamer comprising sulphonated petroleum oil - together with long chain alcohol and nonionic additive, for use in acid media
IPC: B01D19/04
Filed: 1979-02-22
Abstract: Defoamer comprises 48.8 to 97.5 wt.% sulphonated petroleum oil, 1.2 to 48.8 wt.% of 4-20C alcohol and 0.1-50 wt.% pref. 1 to 8 wt.% of anionic additive R-O (R'-O)nR" where R' is hydrocarbyl, and R and R" are hydrocarbyl or hydroxyhydrocarbyl and n is 1 to 200. The ratio of alcohol to sulphonated oil is pref. 0.25 to 0.50:1. Prepn. comprises mixing the components and pref. also agitating for >=15 min. after adding the alcohol to disperse acid sludge. Used for controlling foam in high strength acid media. esp. in the digestion and concn. stages of wet-process phosphoric acid mfr. This defoamer is duperior to conventional defoamers on both a cost/ton P2O5 and a wt./ton P2O5 basis.
Patent NL-8006144-A (NL)
Title: Item supporting and release machine - has opposite hinging flaps swung apart to allow e.g. cardboard box blanks to drop through
IPC: B65B43/14
Filed: 1980-11-11
Abstract: The machine secures items with two parallel opposite edges, e.g. folded cardboard boxes, and releases them in the horizontal position. Two opposite hinging flaps (14) are swung apart by a drive mechanism to reduce their angle to the vertical, typically to less than 60 deg., in which position the item drops through. The flaps can be flat, with their edges parallel to their hinge axes. The latter can be at a higher level than that at which they support the items. They can hinge apart at the same speed, this being such that the items remain in contact with them until they drop through.
Patent NL-8200865-A (NL)
Title: Window frame comprising interconnected frame parts - at least one having dovetail-shaped undercut groove in side face to accommodate protruding profile of window jamb
IPC: E06B1/52
Filed: 1982-03-03
Abstract: The frame, e.g. a window frame, comprises a number of frame parts interconnected at an angle and bounding an opening. At least one frame part has a longitudinal groove in a side face. The groove accommodates a jamb protruding out of the side face for a window closing the opening. The groove is formed by an undercut groove widening from the side face towards the interior, e.g. a dovetail-shaped groove. The jamb has a protruding profile fitting in the groove. Adjacent frame parts are pref. connected by a profiled extension at the head of one part fitting in the undercut groove of the other part.
Patent NL-8301462-A (NL)
IPC: C08F14/06
Filed: 1983-04-26
Abstract: The invention relates to a process for preparing vinyl chloride polymers by suspension polymerization in a polymerization reactor of vinyl chloride, optionally in combination with at most 30% (wt) of one or more monomers copolymerizable therewith, monomer-soluble, radical-forming initiators and optionally in the presence of primary suspending agents. The improvement comprises the addition of 0.01 - 0.5 part by weight of at least one polyvinyl ester with an average degree of solvolysis lower than 70 moles % per 100 parts by weight of the starting monomer to the polymerization reactor before or during this polymerization, which polyvinyl ester is chosen from the polymeric vinyl esters of aliphatic and/or aromatic carboxylic acids with 3 - 20 C-atoms per molecule.
Patent NL-8602660-A (NL)
IPC: C23C14/56
Filed: 1986-10-23
Abstract: The invention relates to a feed-through element for application in a vacuum apparatus for the continuous feeding through of material with wire character to be treated at least made up of a casing and a sealing element set up therein that is in contact with the surface of the material with wire character during feeding through, whereby the sealing element is formed by a split drawing die (20), whereby the casing is formed by a holder (21;22) for the split drawing die (20), whereby the split drawing die (20) being set up with play inside the holder (21;22) and at least a resilient means (28) being inserted in the space between the drawing die (20) and the holder (21;22) and whereby a part of the holder (21;22) being connected in a gastight way to a partition wall of the vacuum apparatus (1).
Patent NL-8700229-A (NL)
Title: POly L- or DL-lactide fibres of high tensile strength - useful for surgical sutures which are re-absorbed by the body
IPC: D01F6/84
Filed: 1987-01-30
Abstract: Polylactide yarns comprising an oriented lactide polymer which is derived from at least 60%, pref. at least 85% L-lactide or DL-lactide and up to 40 wt.% of a hydroxyacid or aminocarboxylic acid with at most 8C, the yarns having a tensile strength of 1.3-4 GPa and in a WAXD X-ray exposure, the reflection in the first stage of the diffractogram corresp. to the beta-structure at 2 theta = 19.8 deg. has a greater intensity than the reflection in the diffractogram corresp. to the alpha-structure at 2 theta = 19.2 deg.
Patent NL-8802150-A (NL)
IPC: C07F15/00
Filed: 1988-08-31
Abstract: A platinum-(II)-diamine complex of the formula 3, a method for the preparation of said compound, a preparation with an antitumour action containing said compound, shaped preparations with an antitumour action and shaped preparations with an antitumour action containing said compound. <CHEM> i
Patent NL-8902098-A (NL)
IPC: E04G21/16
Filed: 1989-08-18
Abstract: In the arranging of building panels in a building frame use is made of a device comprising a chassis (2) provided with wheels (4) and a supporting table (16) which is tiltable relative to the chassis (2) and which is tilted with a building panel (31) into a lying position and turned on a standing axis (15) relative to the chassis (2) and wherein the building panel (31) is disposed in its position in the building frame with its long side upright. According to the invention the supporting table (16) is raised together with the building panel (31) relative to the chassis (2) by means of a lift mechanism (41) operating between supporting table (16) and chassis (2) in order to facilitate the work.
Patent NL-9002049-A (NL)
IPC: A61K9/00
Filed: 1990-09-18
Abstract: The invention relates to an ophthalmic preparation comprising a povidone-iodine solution containing 0.01 to 0.1% of available iodine in a sterile primary packaging which consists of a bottle of glass type I or polyethylene-terephthalate with a dropper of polypropylene, polyethylene and/or polyfluoroethylene coated bromobutyl rubber. Said preparation presents an improved shelf-life. The povidone-iodine solution is prepared from povidone having a K-value of more than 30 and most preferably about 90.
Patent NL-9100112-A (NL)
Title: Plant-cultivation system in block - injects metered quantity of growth-aiding liquid from top into block
IPC: A01G31/02
Filed: 1991-01-23
Abstract: The plant-cultivation system rears one or more plants in a cultivation block (1), which is placed on a block-type base accomodated in a trough (3). A metered quantity of growth-aiding liquid is injected from above (12) into each cultivation block, while the base is held above and clear of the trough, so as to form a cone- or pyramid-shaped column (K) of liquid. This can be done by a supporting member (8) with distance-pieces, holding the base clear of the trough bottom. The trough can be formed by a strip of material bent into a U-shape, the width of its bottom being less than the distance between the opposite distance-pieces.
Patent NL-9101130-A (NL)
IPC: B62D33/07
Filed: 1991-06-28
Abstract: The invention provides a piston cylinder device as a tilting device for a vehicle with a resiliently suspended tiltable cab (3). In the driving position the tilting device (5) is disengaged from the cab (3) and may resiliently move up and down. A tilting movement causes the device to be connected to the cab, said connection being locked by means of a latch hook member (12). The tilting device of the invention distinguishes from the wellknown devices of this type in that the latch hook member cooperates with a lever (15), which is actuated by a stationary element to open or close the latch hook member when the piston cylinder device is respectively moving towards or from the retracted position. <IMAGE>
Patent NL-9400207-A (NL)
Title: Method and accessories for moving objects
Inventor: TERPSTRA JOHANNES
IPC: B62B3/00
Filed: 1994-02-09
Abstract: To move a number of objects 5 which are stored in a room, a transport container 2 is divided up according to the division of the room 1a. The objects 5 are removed from the room 1a and are placed in the transport container 2 in the same configuration as that in which they were stored in the room 1a. The objects 5 are transported in the transport container 2 from the original location to the area of the new location and are transferred into a room 1b which is present at the new location, again in the same configuration as that in which they were stored in the room 1a. In this way, the objects can be moved efficiently and with little risk of the objects being lost or going missing. The invention also describes a container system for use in the method according to the invention, with a large number of possible divisions, as well as a carrier-rack system, a carrier rack 11 and a supporting bar for use therein. <IMAGE>
Patent PT-71388-A (PT)
Title: Process for the isomerization of xylene
IPC: C07C/
Filed: 1980-06-12
Abstract: Isomerisation of xylene content in mixed charge material of 8C atom aromatic hydrocarbon cpd. contg. xylene and ethylbenzene and brought to contact with catalyst contg. zeolite. This method can work in various types of existing facility, as it effectively works at low pressure, in the absence of H2.
Patent PT-74469-A (PT)
Title: Leather tanning agent and process for making same
Inventor: GIGORIEVNA GALINA
IPC: C01G23/00
Filed: 1982-02-22
Abstract: Leather tanning agent contains (in wt.%): Al and ammonium sulphate contg. 0.001-1.0% TiO2 or TiO2 and ZrO2 3-20; and/or Zr and ammonium sulphate contg. 0.001-0.5% TiO2 or TiO2 and Al2O3 20-50; and Ti and ammonium sulphate contg. 0.001-1.0% Al2O3 and/or ZrO2, the balance. The agent may also contain 1-10 wt.% silicic acid as filler and tanning enhancer. The agent is made by treating a soln. contg. 80-200 g/l Ti, calculated as TiO2, with an Al sulphate soln. contg. 80-130 g/l Al, calculated as Al2O3 and/or Zr sulphate contg. 50-200 g/l Zr, calculated as ZrO2 in the presence of H2SO4 and (NH4)2SO4. Agent has better tanning activity than prior Ti-contg. agents and is easily made from available reagents.